wefnexus provides a comprehensive toolkit for analyzing Water-Energy-Food-Nutrient-Carbon (WEFNC) nexus interactions in agricultural production systems. It includes 68 functions across 6 modules with a nexus integration layer.
Install from CRAN:
install.packages("wefnexus")| Module | Functions | Key Metrics |
|---|---|---|
| Water | 11 | WUE, WP, WF (green/blue/grey), CWSI, CWP, RUE, IWP, WSI |
| Energy | 14 | EUE, EROI (standard + extended), EP, EI, NER, REF, energy budget |
| Food | 12 | FPI, HI, LER, SPI, SYI, nutritional yield, BCR |
| Nutrient | 11 | AE, PE, RE, PFP, IUE, NHI, N surplus, SNI |
| Carbon | 10 | CF, GHG, SOC, GWP (IPCC AR6), CEI, NECB |
| Nexus | 10 | Composite index, trade-off matrix, sensitivity, radar, heatmap |
library(wefnexus)
data(arid_pulse_nexus)
d <- arid_pulse_nexus
# Compute EROI with extended analysis
e_out <- d$energy_output_grain + d$energy_output_straw
eroi(energy_out = e_out, energy_in = d$energy_input)
# Full nexus summary
nexus_summary(
yield = d$grain_yield,
water_consumed = d$total_water,
energy_input = d$energy_input,
energy_output = e_out,
n_applied = d$n_applied,
n_uptake = d$n_uptake,
carbon_emission = d$ghg_emission,
treatment_names = d$treatment
)- 68 functions across 6 integrated modules
- EROI with standard, extended, and Net Energy Ratio analysis
- IPCC AR6 GWP defaults: CH4 = 27, N2O = 273 (100-yr horizon)
- Nutritional yield analysis (protein, Fe, Zn, persons fed)
- Nexus sensitivity analysis for weight perturbation assessment
- Conservation agriculture focus (CT/ZT/PB comparisons)
- Arid and semi-arid environment emphasis
- CRAN-ready: verbose parameter, proper documentation
- Base R graphics: zero external plotting dependencies
Rolaniya, L.K., Poonia, H., Jat, R.L., Punia, M. & Choudhary, R.R. (2026).
wefnexus: Water-Energy-Food-Nutrient-Carbon Nexus Analysis for Agronomic
Systems. R package version 1.0.0. https://CRAN.R-project.org/package=wefnexus
GPL (>= 3)